A field experiment to study the effect of growth substances on growth, yield and yield attributes was conducted during 1975–76. Spray treatments consisted of GA, CK and IBA. Spraying was done when the first true leaf was enlarging. It was found that CK, without inducing the elongation of stem, increased the safflower yield significantly by increasing the yield attributes viz. seed number, seed size and number of capsules/plant. This increase in yield and yield attributes was thought to be due to increased rate of leaf production and delayed senescence. While GA, though induced stem elongation, decreased the yield significantly by affecting the yield attributes adversely. It was, therefore, concluded that the treatment which will increase the branching and yield attributes will lead to higher yield in safflower and breaking the rosette form did not appear to help in improvement in yield.
